Title :
Efficient and fine scheduling algorithm for bandwidth allocation in ethernet passive optical networks
Author :
Chen, Biao ; Chen, Jiajia ; He, Sailing
Author_Institution :
Joint Lab. of Opt. Commun., Zhejiang Univ., Hangzhou
Abstract :
A novel fine scheduling algorithm is introduced for upstream bandwidth allocation in an Ethernet-based passive optical network. This scheduling algorithm consists of an inter optical network unit (ONU) scheduler at the optical line terminal (OLT) and an intra-ONU scheduler at each ONU. In the inter-ONU scheduling, a novel GATE/REPORT approach is introduced to eliminate the unused remainders without transmission delay and maximize the utilization of bandwidth. Our novel intra-ONU scheduler gives fair bandwidth allocation to the queues of different priorities for each user in a hierarchical and decentralized way. Numerical results have shown that our overall scheduling algorithm can fulfill various requirements of delay and throughput for the transmission of multimedia traffic for each end user
Keywords :
bandwidth allocation; multimedia communication; optical fibre LAN; telecommunication traffic; Ethernet; GATE approach; REPORT approach; bandwidth allocation; delay requirements; efficient scheduling algorithm; fine scheduling algorithm; interoptical network unit scheduler; intraoptical network unit scheduler; multimedia traffic transmission; optical line terminal; passive optical networks; queue allocation; Bandwidth; Channel allocation; EPON; Ethernet networks; Intelligent networks; Optical fiber networks; Optical network units; Passive optical networks; Scheduling algorithm; Traffic control; Dynamic bandwidth allocation; Ethernet passive optical network (EPON); hierarchical scheduling; optical access technologies; unused remainder;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2006.876607
